| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Aquila |
| Right ascension | 19h 48m 42.136s |
| Declination | +11° 48′ 57.05″ |
| Apparent magnitude (V) | 5.72 |
| Characteristics | |
| Spectral type | F2V+ |
| Astrometry | |
| Radial velocity (Rv) | 13.6 km/s |
| Proper motion (μ) | RA: 20.6 mas/yr Dec.: -10.0 mas/yr |
| Parallax (π) | 5.72 ± 1.1 mas |
| Distance | approx. 600 ly (approx. 170 pc) |
| Absolute magnitude (MV) | 6.4 |
| Details | |
| Mass | 1.7 M☉ |
| Radius | 1.4 R☉ |
| Luminosity | 6 L☉ |
| Temperature | 6,000–7,500 K |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
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Pi Aquilae (π Aql, π Aquilae) or 52 Aquilae is a triple star in the constellation Aquila. It is approximately 570 light years from Earth.
The primary component, π Aquilae A, is a yellow-white F-type giant with an apparent magnitude of +5.7. Its companion, π Aquilae B, is a white A-type main sequence dwarf with an apparent magnitude of +6.2. The combined apparent magnitude of the binary is +5.72. The two stars are separated by 1.4 arcseconds on the sky, and have an orbital period in excess of 3000 years. The third, faint (mag. 12.1) component, Pi Aquilae C, may be optical.
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